ENTSOG Southern Corridor (SC) Gas Regional Investment Plan (GRIP) 2014-2023 / Main Report

The above cases have been simulated with various infrastructure scenarios. In addition to the distinction made in the TYNDP, between FID and non-FID projects, the present GRIP has adopted a finer classification of projects creating smaller groups, within the non-FID one, in order to allow for a more detailed examination of the impact of several large key projects and of the PCI project for the Region. Thus the following project groups were created: \\ FID \\ FID + TAP \\ FID + TAP + IGB \\ FID + TAP + IGB + IAP \\ FID + PCI \\ FID + non-FID All the cases considered are shown in the following table 7.1:

SUPPLY SOURCES

SITUATIONS

PIPE IMPORTS

LNG

UGS

1-DAY DESIGN-CASE OR 1-DAY UNIFORM RISK

Import component is equal to the Average Winter Supply. The remaining send-out is used as last resort Import component is equal to the Av- erage Winter Supply. Additional send-out based on the max- imum use of stored LNG

The maximum reached on one day during the last 3 years

Last resort supply

14-DAY UNIFORM RISK

The highest average of 14 consecutive days during the last 3 years

1-DAY AVERAGE

Average shares by source of the different supply import sources in the European yearly balance of last 3 years, applied to the required imports. When the supply coming from one source is limited by the intermediate potential supply scenario, the corresponding missing volume is divided between the remain- ing sources proportionally to their ability to increase their level i.e. how far they are from reaching their own intermediate supply potential scenario. Based on the 1-day average – decreased by source to represent the seasonal swing. The seasonal swing in gas supply has been estimated as the average seasonal swing of the last 3 years for each source.

Not used

1-DAY AVERAGE SUMMER

The total injected volume for Europe has been defined as 80% of the WGV (based on the average use of the last 3 years), and divided by balancing zone proportionally to the injection capacity. Average withdrawal equals average in- jection (country by country) of the aver- age summer.

1-DAY AVERAGE WINTER

Based on the 1-day average – decreased by source to represent the seasonal swing. The seasonal swing in gas supply has been estimated as the average seasonal swing of the last 3 years for each source.

1-DAY – MIXED CASES

Minimum: Supply by source and route as resulting of the 1-day Average. Maximum: As the 1-day Design Case

Min: value in average winter Max: withdraw availability (linked to stock level) Min: value in average winter Max: withdraw availability (linked to stock level)

2-WEEK – MIXED CASES

Minimum: Supply by source and route as resulting of the 1-day Average. Maximum: As the 1-day Design Case

Table 7.1: Cases considered for the assessment of the Region’s Transmission Infrastructure

In the maps that follow the remaining flexibility level is indicated by the following colours: < 1% 1 – 5% 5 – 20% > 20%

Southern Corridor GRIP 2014–2023 |

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